Grand Slam

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work of Wallis

Wallis produced not only the dambuster bombs but also the 12,000-pound “Tallboy” and the 22,000-pound “
Grand Slam” bombs. He was also responsible for the bombs that destroyed the German warship
Tirpitz, the V-rocket sites, and much of Germany’s railway system. Wallis was chief of aeronautical research and development at the British Aircraft...